Question

What is the wavelength m if n=2 to n=6

Answer #1

Rydberg Equation

Apply Rydberg Formula

E = R*(1/nf^2 – 1/ni ^2)

R = -2.178*10^-18 J

Nf = final stage/level

Ni = initial stage/level

E = Energy per unit (i.e. J/photon)

E = (-2.178*10^-18)*(1/6^2 – 1/2 ^2)

E = 4.84*10^-19 J/photon

For the wavelength:

WL = h c / E

h = Planck Constant = 6.626*10^-34 J s

c = speed of particle (i.e. light) = 3*10^8 m/s

E = energy per particle J/photon

WL = (6.626*10^-34)(3*10^8)/(4.84*10^-19) = 4.10702*10^-7 m

WL (in nm) = 4.10702*10^-7*10^9 = 410.7 nm

Calculate the wavelength and frequency of light emitted when an
electron changes from n=5 to n=2 in the H atom.
Wavelength = ???m
Frequency = ??? s^-1

The transition from n = 6 to n = 2 produces
the Balmer series line with wavelength λ0. The
wavelength is 4 times larger than an n = x to
n = 1 transition in the Lyman series. Determine the value
of x.
Group of answer choices
3
5
6
2
4

a) Determine the wavelength of the second Balmer line (n = 4 to
n = 2 transition) using Figure A.
b) Determine the wavelength of the third Lyman line.
c) Determine the wavelength of the first Balmer line
Figure A

Calculate the wavelength corresponding to a transition of
electrons from the n = 6 energy level to the n = 3 level in a B4+
ion. (Use En= -R(z2/n2))
Using your answer from the question above what is the speed that
an electron would need to travel in order to display the same
wavelength?

#1: A mass of 6 kg is attached to a spring with k = 1500
N/m. It is stretched a distance of 0.5 m and is released so that it
oscillates in simple harmonic motion.
A) What is the frequency?
B) What is the energy of the oscillator?
C) What is the maximum velocity for the
oscillator?
#2: When at x = 0.3 m a simple harmonic
oscillator (k = 2000 N/m and m = 2 kg) has a velocity of...

Two narrow slits 55 μm μ m apart are illuminated with light of
wavelength 620nm n m . The light shines on a screen 1.2 m m
distant.
a) What is the angle of the mm = 2 bright fringe?
b) How far is this fringe from the center of the pattern?

Answer the following questions about quantum mechanics of
atoms
a. Estimate the wavelength for an n = 2 to n =1 transition in
zirconium
b. A mixture of iron and an unknown material are bombarded with
high energy electrons. Two different wavelengths of X-rays are
emitted. X-rays with a wavelength of 194 pm come from iron. From
what element do X-rays with a wavelength of 229 pm come from?
c. A 14 g bullet leaves a rifle with a speed...

What is the emission wavelength for an electron falling from the
vacuum level (n=∞) to the lowest energy level in a hydrogen atom?
Use the Rydberg equation and the numerical values for the Rydberg
constant Rh given above. In which part of the
electromagnetic spectrum is this?
RH =2.17868891 x 10^–18 J = 1.09677759 x 107 m^–1

Determine the wavelength of light emitted when an electron drops
from n=3 to n=2 where E1 = -10eV, E2 = -5eV, and E3 = -2.5eV

a) Light of wavelength 585 nm passes through a slit 6.00 × 10-6
m wide and falls on a screen that is 2.28 m away. What is the
distance on the screen from the center of the central bright fringe
to the thrid dark fringe on either side?
b)
Two stars are 4.7 × 1011 m apart and are equally
distant from the earth. A telescope has an objective lens with a
diameter of 1.06 m and just detects these...

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 8 minutes ago

asked 8 minutes ago

asked 13 minutes ago

asked 13 minutes ago

asked 13 minutes ago

asked 13 minutes ago

asked 13 minutes ago

asked 16 minutes ago

asked 18 minutes ago

asked 18 minutes ago

asked 21 minutes ago

asked 21 minutes ago